This kit includes 1 Arduino UNO R3 Board + 1 USB Cable + 1 RFID-RC522 Module (RFID reader) + 1 RFID Proximity ID Round Tag + 1 RFID Proximity ID Card Tag + 2 Pin header + 8 Male to Female Jumper Wires.with this kit, you can use it to communicate with your arduino board. We provide the sample code for you to use with this kit, so the process would become very easier for you to get familiar with this kit. So you can start your RFID project as soon as you get this kit , such as use the RFID to open the door etc...and we hope you can also be very creative to use this kit for many awesome ideas !